Bangladesh Railway Class 6500

Bangladesh Railway Class 6500 is a class of 1,676 mm gauge diesel-electric locomotives owned by Bangladesh Railway. There are 36 locomotives of this class, all manufactured by the Banaras Locomotive Works of India. All locomotives of this class are in service.[1][2]

Bangladesh Railway Class 6500
Locomotive 6510 at Kamalapur railway station
Type and origin
Power typeDiesel
BuilderBanaras Locomotive Works
ModelALCO DL560C
Build date2012 - 2014
Total produced36; 26 BED-30 and 10 BED-33
Specifications
Configuration:
​
 • UICCo-Co
Gauge1,676 mm (5 ft 6 in)
BogiesALCO Asymmetric cast frame trimount (BED-30)
Alco High-Adhesion bogies (BED-33)
Wheel diameter1,092 mm (3 ft 7 in)
Wheelbase12.834 m (42 ft 1 1⁄4 in)
Length17.12 m (56 ft 2 in) (BED-30)
18.626 m (61 ft 1 1⁄4 in) (BED-33)
Width2.864 m (9 ft 4 3⁄4 in) (BED-30)
2.95 m (9 ft 8 1⁄8 in) (BED-33)
Height4.185 m (13 ft 8 3⁄4 in) (BED-30)
4.077 m (13 ft 4 1⁄2 in) (BED-33))
Axle load18,800 kg (41,400 lb) (BED-30)
19,500 kg (43,000 lb) (BED-33)
Loco weight112.8 t (111.0 long tons; 124.3 short tons) (BED-30)
117,000 kg (258,000 lb) (BED-33)
Fuel typeDiesel
Fuel capacity5,000 L (1,100 imp gal; 1,300 US gal) (BED-30)
6,000 L (1,300 imp gal; 1,600 US gal) (BED-33)
Prime moverALCO 251-C (BED-30)
ALCO 251-B (BED-33)
RPM range390rpm-400rpm idling, 1050rpm at 8th notch
Engine typeV16 Diesel engine
AspirationTurbo-supercharged
Cylinders16
Cylinder size228 mm × 266 mm (8.98 in × 10.47 in)
bore x stroke
TransmissionDiesel-electric transmission
Gear ratio65:18
MU working2
Loco brakeAir
Train brakesAir
CouplersAAR
Performance figures
Maximum speed120 km/h (75 mph) (BED-30)
160 km/h (99 mph) (BED-33)
Power output3,000 hp (2,200 kW) (BED-30)
3,300 hp (2,500 kW) (BED-33)
Tractive effort30.45 t (30 long tons; 34 short tons) (BED-30)
36.03 t (35 long tons; 40 short tons) (BED-33)
Factor of adh.0.27
Career
OperatorsBangladesh Railway
ClassBED-30
BED-33
Numbers6501 - 6526 (BED-30)
6527 - 6536 (BED-33)
DispositionActive

Details

In 2012, Bangladesh Railway ordered broad-gauge diesel-electric locomotives from India, modeled as WDM 3A. These 26 locomotives were imported in Bangladesh in 2012, 2013 and 2014.[3] These locomotives have a power of 3100 hp, the highest for any locomotives in Bangladesh. They are fitted with AAR coupling and have a gear ratio of 65:18.[4] Unlike their Indian counterparts, these locomotives do not have the Dynamic Braking System. These locomotives are marked as BED-30 that stands for broad gauge (B), Diesel-electric (E), manufactured by DLW (D), engine with 30 * 100 hp (30) and numbered as 6501 - 6526.

On 27 July 2020, 10 WDM-3D units were imported from India marked as BED-33.[5][6] The class name stands for broad gauge (B), Diesel-electric (E), manufactured by DLW (D), engine with 33 * 100 hp (33) and numbered as 6527 - 6536. These locos have a 3300 hp power pack, with maximum available traction power of 2925 hp.[7][8]

Liveries

Class 6500 locomotives have the deep blue-yellow and sky blue-yellow livery. BED-30s have the deep blue-yellow livery and BED-33s have sky blue-yellow livery.

Usage

Among all the class 6500 locomotives, BED-30 is basically used on both freight and passenger trains. Most high-end broad-gauge passenger trains like Padma Express, Banalata Express and Maitree Express are hauled by these locomotives. They are also used on some mail-express and commuter trains. On the other hand, BED-33 is usually only used on freight trains.

BED-30
  • 6501
  • 6503
  • 6504
  • 6508
  • 6509
  • 6510
  • 6513
  • 6514
  • 6515
  • 6516
  • 6518
  • 6519
  • 6521
  • 6522
  • 6523
  • 6524

BED-33
  • 6533
  • 6536

See also

References
  1. "Locomotive database - 1435mm.net". www.1435mm.net. Retrieved 2020-09-26.
  2. "Final Report on Rolling Stock Maintenance" (PDF). Asian Development Bank.
  3. "DLW bags order for 16 locomotives from Bangladesh Railways | Global Rail News". 2017-08-28. Archived from the original on 2017-08-28. Retrieved 2020-04-19.
  4. "[IRFCA] Indian Railways FAQ: Locomotives -- Specific classes : AC Electric". www.irfca.org. Retrieved 2020-04-19.
  5. 2020-07-28T13:00:00+01:00. "Bangladesh locomotive handover". Railway Gazette International. Retrieved 2020-08-02.
  6. "India to handover 10 broad-gauge locos to B'desh". The Week. Retrieved 2020-08-02.
  7. "WDM3D - 2200 HP Multiple Operation Locomotive" (PDF). Indian Railways.
  8. "India increases rail connections with Bangladesh". International Railway Journal. 2020-07-27. Retrieved 2020-09-12.
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